fill.h

实现了区域填充已经其他画线功能

// Fill.h: interface for the CFill class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_FILL_H)
#define AFX_FILL_H

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000


struct edge
{
	int xmin;
	float yi;
	float m;
	struct edge *next;
};

class CFill  
{
public:
	void Flood_Fill_8(CDC *pDC,CPoint Pseed,unsigned int old_color,unsigned int fill_color);
	void Scan_Fill(CDC *pDC,CPoint Pseed,unsigned boundary_color,unsigned fill_color);
	void poly_fill(CDC *pDC,int numpoint,int *points,int color);
	void draw_line(CDC *pDC,int y1,int y2,int x,int color);
	short insert_aet(struct edge *p,struct edge **p_aet);
	void insert_et(struct edge *anedge,struct edge **p_edges);
//	CDC *pDC;
	CFill();
	CFill(CDC*pDoc);
	virtual ~CFill();
};

#endif // !defined(AFX_FILL_H)